National Geographic : 1949 Jul
Q National Georaphllic Society 41 Kodachromes by Rutlherford Platt A Shell Collector Finds Treasure-trove in a Tide Pool at Ogunquit, Maine When the water recedes, leaving shallow pools among the rocks and along the beaches, a wonderland of mollusk life is uncovered-single-shell univalves (much the more numerous), and bivalves, like the mussels and oysters. In these 32 color pages the reader explores for shells around the world. Specimens gathered from near and far, from lakes, rivers, and oceans, from swamps and deserts, from trees and grasses, are reproduced in their natural hues and named so that the collector may readily identify them. Inset Kodachromes show: (1) a group of Marble Snails, Thais lapillus; (2) Mandarin Hat and Periwinkle, Acmaea testudinalis and Littorina littorea; (3) Mussel, Mytilus edulis; (4) Moon Shell, Polinices heros; (5) Sea Urchin, Arbacia punctulata (an echinoderm).